17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5f0a2d94fSmarks * Common Development and Distribution License (the "License").
6f0a2d94fSmarks * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate /*
22*da6c28aaSamw * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
237c478bd9Sstevel@tonic-gate * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
267c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
277c478bd9Sstevel@tonic-gate /* All Rights Reserved */
287c478bd9Sstevel@tonic-gate
297c478bd9Sstevel@tonic-gate /*
307c478bd9Sstevel@tonic-gate * Huffman encoding program
31*da6c28aaSamw * Usage: pack [[ -f ] [ - ] [-/] filename ... ] filename ...
327c478bd9Sstevel@tonic-gate * - option: enable/disable listing of statistics
337c478bd9Sstevel@tonic-gate */
347c478bd9Sstevel@tonic-gate
357c478bd9Sstevel@tonic-gate #include <locale.h>
367c478bd9Sstevel@tonic-gate #include <stdarg.h>
377c478bd9Sstevel@tonic-gate #include <sys/isa_defs.h>
387c478bd9Sstevel@tonic-gate #include <sys/param.h>
397c478bd9Sstevel@tonic-gate #include <utime.h>
40fa9e4066Sahrens #include <sys/acl.h>
41fa9e4066Sahrens #include <aclutils.h>
42*da6c28aaSamw #include <libcmdutils.h>
437c478bd9Sstevel@tonic-gate
447c478bd9Sstevel@tonic-gate #undef lint
457c478bd9Sstevel@tonic-gate
467c478bd9Sstevel@tonic-gate #define END 256
477c478bd9Sstevel@tonic-gate #define PACKED 017436 /* <US><RS> - Unlikely value */
487c478bd9Sstevel@tonic-gate #define SUF0 '.'
497c478bd9Sstevel@tonic-gate #define SUF1 'z'
507c478bd9Sstevel@tonic-gate
517c478bd9Sstevel@tonic-gate struct stat status, ostatus;
527c478bd9Sstevel@tonic-gate static struct utimbuf u_times;
537c478bd9Sstevel@tonic-gate
547c478bd9Sstevel@tonic-gate /* union for overlaying a long int with a set of four characters */
557c478bd9Sstevel@tonic-gate union FOUR {
567c478bd9Sstevel@tonic-gate struct { long int lng; } lint;
577c478bd9Sstevel@tonic-gate struct { char c0, c1, c2, c3; } chars;
587c478bd9Sstevel@tonic-gate };
597c478bd9Sstevel@tonic-gate
607c478bd9Sstevel@tonic-gate /* character counters */
617c478bd9Sstevel@tonic-gate long count [END+1];
627c478bd9Sstevel@tonic-gate union FOUR insize;
637c478bd9Sstevel@tonic-gate long outsize;
647c478bd9Sstevel@tonic-gate long dictsize;
657c478bd9Sstevel@tonic-gate int diffbytes;
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate /* i/o stuff */
687c478bd9Sstevel@tonic-gate char vflag = 0;
697c478bd9Sstevel@tonic-gate int force = 0; /* allow forced packing for consistency in directory */
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate static char filename [MAXPATHLEN];
727c478bd9Sstevel@tonic-gate static int max_name;
737c478bd9Sstevel@tonic-gate
747c478bd9Sstevel@tonic-gate int infile; /* unpacked file */
757c478bd9Sstevel@tonic-gate int outfile; /* packed file */
767c478bd9Sstevel@tonic-gate char inbuff [BUFSIZ];
777c478bd9Sstevel@tonic-gate char outbuff [BUFSIZ+4];
787c478bd9Sstevel@tonic-gate
797c478bd9Sstevel@tonic-gate /* variables associated with the tree */
807c478bd9Sstevel@tonic-gate int maxlev;
817c478bd9Sstevel@tonic-gate int levcount [25];
827c478bd9Sstevel@tonic-gate int lastnode;
837c478bd9Sstevel@tonic-gate int parent [2*END+1];
847c478bd9Sstevel@tonic-gate
857c478bd9Sstevel@tonic-gate /* variables associated with the encoding process */
867c478bd9Sstevel@tonic-gate char length [END+1];
877c478bd9Sstevel@tonic-gate long bits [END+1];
887c478bd9Sstevel@tonic-gate union FOUR mask;
897c478bd9Sstevel@tonic-gate long inc;
907c478bd9Sstevel@tonic-gate #if defined(_LITTLE_ENDIAN)
917c478bd9Sstevel@tonic-gate char *maskshuff[4] = {&(mask.chars.c3),
927c478bd9Sstevel@tonic-gate &(mask.chars.c2),
937c478bd9Sstevel@tonic-gate &(mask.chars.c1),
947c478bd9Sstevel@tonic-gate &(mask.chars.c0)};
957c478bd9Sstevel@tonic-gate #elif defined(_BIG_ENDIAN)
967c478bd9Sstevel@tonic-gate char *maskshuff[4] = {&(mask.chars.c0),
977c478bd9Sstevel@tonic-gate &(mask.chars.c1),
987c478bd9Sstevel@tonic-gate &(mask.chars.c2),
997c478bd9Sstevel@tonic-gate &(mask.chars.c3)};
1007c478bd9Sstevel@tonic-gate #else
1017c478bd9Sstevel@tonic-gate #error Unknown byte ordering!
1027c478bd9Sstevel@tonic-gate #endif
1037c478bd9Sstevel@tonic-gate
1047c478bd9Sstevel@tonic-gate /* the heap */
1057c478bd9Sstevel@tonic-gate int n;
1067c478bd9Sstevel@tonic-gate struct heap {
1077c478bd9Sstevel@tonic-gate long int count;
1087c478bd9Sstevel@tonic-gate int node;
1097c478bd9Sstevel@tonic-gate } heap [END+2];
1107c478bd9Sstevel@tonic-gate #define hmove(a, b) {(b).count = (a).count; (b).node = (a).node; }
1117c478bd9Sstevel@tonic-gate
1127c478bd9Sstevel@tonic-gate static void heapify(int i);
113*da6c28aaSamw
114*da6c28aaSamw /* Extended system attribute support */
115*da6c28aaSamw
116*da6c28aaSamw static int saflg = 0;
117*da6c28aaSamw
1187c478bd9Sstevel@tonic-gate
1197c478bd9Sstevel@tonic-gate /* gather character frequency statistics */
1207c478bd9Sstevel@tonic-gate /* return 1 if successful, 0 otherwise */
121a77d64afScf int
input(char * source)1227c478bd9Sstevel@tonic-gate input(char *source)
1237c478bd9Sstevel@tonic-gate {
1247c478bd9Sstevel@tonic-gate register int i;
1257c478bd9Sstevel@tonic-gate for (i = 0; i < END; i++)
1267c478bd9Sstevel@tonic-gate count[i] = 0;
1277c478bd9Sstevel@tonic-gate while ((i = read(infile, inbuff, BUFSIZ)) > 0)
1287c478bd9Sstevel@tonic-gate while (i > 0)
1297c478bd9Sstevel@tonic-gate count[inbuff[--i]&0377] += 2;
1307c478bd9Sstevel@tonic-gate if (i == 0)
1317c478bd9Sstevel@tonic-gate return (1);
132*da6c28aaSamw (void) fprintf(stderr, gettext(
133*da6c28aaSamw "pack: %s: read error - file unchanged: "), source);
1347c478bd9Sstevel@tonic-gate perror("");
1357c478bd9Sstevel@tonic-gate return (0);
1367c478bd9Sstevel@tonic-gate }
1377c478bd9Sstevel@tonic-gate
1387c478bd9Sstevel@tonic-gate /* encode the current file */
1397c478bd9Sstevel@tonic-gate /* return 1 if successful, 0 otherwise */
140a77d64afScf int
output(char * source)1417c478bd9Sstevel@tonic-gate output(char *source)
1427c478bd9Sstevel@tonic-gate {
1437c478bd9Sstevel@tonic-gate int c, i, inleft;
1447c478bd9Sstevel@tonic-gate char *inp;
1457c478bd9Sstevel@tonic-gate register char **q, *outp;
1467c478bd9Sstevel@tonic-gate register int bitsleft;
1477c478bd9Sstevel@tonic-gate long temp;
1487c478bd9Sstevel@tonic-gate
1497c478bd9Sstevel@tonic-gate /* output ``PACKED'' header */
1507c478bd9Sstevel@tonic-gate outbuff[0] = 037; /* ascii US */
1517c478bd9Sstevel@tonic-gate outbuff[1] = 036; /* ascii RS */
1527c478bd9Sstevel@tonic-gate /* output the length and the dictionary */
1537c478bd9Sstevel@tonic-gate temp = insize.lint.lng;
1547c478bd9Sstevel@tonic-gate for (i = 5; i >= 2; i--) {
1557c478bd9Sstevel@tonic-gate outbuff[i] = (char)(temp & 0377);
1567c478bd9Sstevel@tonic-gate temp >>= 8;
1577c478bd9Sstevel@tonic-gate }
1587c478bd9Sstevel@tonic-gate outp = &outbuff[6];
1597c478bd9Sstevel@tonic-gate *outp++ = maxlev;
1607c478bd9Sstevel@tonic-gate for (i = 1; i < maxlev; i++)
1617c478bd9Sstevel@tonic-gate *outp++ = levcount[i];
1627c478bd9Sstevel@tonic-gate *outp++ = levcount[maxlev]-2;
1637c478bd9Sstevel@tonic-gate for (i = 1; i <= maxlev; i++)
1647c478bd9Sstevel@tonic-gate for (c = 0; c < END; c++)
1657c478bd9Sstevel@tonic-gate if (length[c] == i)
1667c478bd9Sstevel@tonic-gate *outp++ = c;
1677c478bd9Sstevel@tonic-gate dictsize = outp-&outbuff[0];
1687c478bd9Sstevel@tonic-gate
1697c478bd9Sstevel@tonic-gate /* output the text */
170*da6c28aaSamw (void) lseek(infile, 0L, 0);
1717c478bd9Sstevel@tonic-gate outsize = 0;
1727c478bd9Sstevel@tonic-gate bitsleft = 8;
1737c478bd9Sstevel@tonic-gate inleft = 0;
1747c478bd9Sstevel@tonic-gate do {
1757c478bd9Sstevel@tonic-gate if (inleft <= 0) {
1767c478bd9Sstevel@tonic-gate inleft = read(infile, inp = &inbuff[0], BUFSIZ);
1777c478bd9Sstevel@tonic-gate if (inleft < 0) {
178*da6c28aaSamw (void) fprintf(stderr, gettext(
1797c478bd9Sstevel@tonic-gate "pack: %s: read error - file unchanged: "),
180*da6c28aaSamw source);
1817c478bd9Sstevel@tonic-gate perror("");
1827c478bd9Sstevel@tonic-gate return (0);
1837c478bd9Sstevel@tonic-gate }
1847c478bd9Sstevel@tonic-gate }
1857c478bd9Sstevel@tonic-gate c = (--inleft < 0) ? END : (*inp++ & 0377);
1867c478bd9Sstevel@tonic-gate mask.lint.lng = bits[c]<<bitsleft;
1877c478bd9Sstevel@tonic-gate q = &maskshuff[0];
1887c478bd9Sstevel@tonic-gate if (bitsleft == 8)
1897c478bd9Sstevel@tonic-gate *outp = **q++;
1907c478bd9Sstevel@tonic-gate else
1917c478bd9Sstevel@tonic-gate *outp |= **q++;
1927c478bd9Sstevel@tonic-gate bitsleft -= length[c];
1937c478bd9Sstevel@tonic-gate while (bitsleft < 0) {
1947c478bd9Sstevel@tonic-gate *++outp = **q++;
1957c478bd9Sstevel@tonic-gate bitsleft += 8;
1967c478bd9Sstevel@tonic-gate }
1977c478bd9Sstevel@tonic-gate if (outp >= &outbuff[BUFSIZ]) {
1987c478bd9Sstevel@tonic-gate if (write(outfile, outbuff, BUFSIZ) != BUFSIZ) {
199*da6c28aaSamw wrerr: (void) fprintf(stderr, gettext(
200*da6c28aaSamw "pack: %s.z: write error - "
201*da6c28aaSamw "file unchanged: "), source);
2027c478bd9Sstevel@tonic-gate perror("");
2037c478bd9Sstevel@tonic-gate return (0);
2047c478bd9Sstevel@tonic-gate }
2057c478bd9Sstevel@tonic-gate ((union FOUR *)outbuff)->lint.lng =
206*da6c28aaSamw ((union FOUR *)&outbuff[BUFSIZ])->lint.lng;
2077c478bd9Sstevel@tonic-gate outp -= BUFSIZ;
2087c478bd9Sstevel@tonic-gate outsize += BUFSIZ;
2097c478bd9Sstevel@tonic-gate }
2107c478bd9Sstevel@tonic-gate } while (c != END);
2117c478bd9Sstevel@tonic-gate if (bitsleft < 8)
2127c478bd9Sstevel@tonic-gate outp++;
2137c478bd9Sstevel@tonic-gate c = outp-outbuff;
2147c478bd9Sstevel@tonic-gate if (write(outfile, outbuff, c) != c)
2157c478bd9Sstevel@tonic-gate goto wrerr;
2167c478bd9Sstevel@tonic-gate outsize += c;
2177c478bd9Sstevel@tonic-gate return (1);
2187c478bd9Sstevel@tonic-gate }
2197c478bd9Sstevel@tonic-gate
2207c478bd9Sstevel@tonic-gate /* makes a heap out of heap[i],...,heap[n] */
2217c478bd9Sstevel@tonic-gate void
heapify(int i)2227c478bd9Sstevel@tonic-gate heapify(int i)
2237c478bd9Sstevel@tonic-gate {
2247c478bd9Sstevel@tonic-gate register int k;
2257c478bd9Sstevel@tonic-gate int lastparent;
2267c478bd9Sstevel@tonic-gate struct heap heapsubi;
2277c478bd9Sstevel@tonic-gate hmove(heap[i], heapsubi);
2287c478bd9Sstevel@tonic-gate lastparent = n/2;
2297c478bd9Sstevel@tonic-gate while (i <= lastparent) {
2307c478bd9Sstevel@tonic-gate k = 2*i;
2317c478bd9Sstevel@tonic-gate if (heap[k].count > heap[k+1].count && k < n)
2327c478bd9Sstevel@tonic-gate k++;
2337c478bd9Sstevel@tonic-gate if (heapsubi.count < heap[k].count)
2347c478bd9Sstevel@tonic-gate break;
2357c478bd9Sstevel@tonic-gate hmove(heap[k], heap[i]);
2367c478bd9Sstevel@tonic-gate i = k;
2377c478bd9Sstevel@tonic-gate }
2387c478bd9Sstevel@tonic-gate hmove(heapsubi, heap[i]);
2397c478bd9Sstevel@tonic-gate }
2407c478bd9Sstevel@tonic-gate
2417c478bd9Sstevel@tonic-gate /* return 1 after successful packing, 0 otherwise */
2427c478bd9Sstevel@tonic-gate int
packfile(char * source)2437c478bd9Sstevel@tonic-gate packfile(char *source)
2447c478bd9Sstevel@tonic-gate {
2457c478bd9Sstevel@tonic-gate register int c, i, p;
2467c478bd9Sstevel@tonic-gate long bitsout;
2477c478bd9Sstevel@tonic-gate
2487c478bd9Sstevel@tonic-gate /* gather frequency statistics */
2497c478bd9Sstevel@tonic-gate if (input(source) == 0)
2507c478bd9Sstevel@tonic-gate return (0);
2517c478bd9Sstevel@tonic-gate
2527c478bd9Sstevel@tonic-gate /* put occurring chars in heap with their counts */
2537c478bd9Sstevel@tonic-gate diffbytes = -1;
2547c478bd9Sstevel@tonic-gate count[END] = 1;
2557c478bd9Sstevel@tonic-gate insize.lint.lng = n = 0;
2567c478bd9Sstevel@tonic-gate for (i = END; i >= 0; i--) {
2577c478bd9Sstevel@tonic-gate parent[i] = 0;
2587c478bd9Sstevel@tonic-gate if (count[i] > 0) {
2597c478bd9Sstevel@tonic-gate diffbytes++;
2607c478bd9Sstevel@tonic-gate insize.lint.lng += count[i];
2617c478bd9Sstevel@tonic-gate heap[++n].count = count[i];
2627c478bd9Sstevel@tonic-gate heap[n].node = i;
2637c478bd9Sstevel@tonic-gate }
2647c478bd9Sstevel@tonic-gate }
2657c478bd9Sstevel@tonic-gate if (diffbytes == 1) {
266*da6c28aaSamw (void) fprintf(stderr, gettext(
267*da6c28aaSamw "pack: %s: trivial file - file unchanged\n"), source);
2687c478bd9Sstevel@tonic-gate return (0);
2697c478bd9Sstevel@tonic-gate }
2707c478bd9Sstevel@tonic-gate insize.lint.lng >>= 1;
2717c478bd9Sstevel@tonic-gate for (i = n/2; i >= 1; i--)
2727c478bd9Sstevel@tonic-gate heapify(i);
2737c478bd9Sstevel@tonic-gate
2747c478bd9Sstevel@tonic-gate /* build Huffman tree */
2757c478bd9Sstevel@tonic-gate lastnode = END;
2767c478bd9Sstevel@tonic-gate while (n > 1) {
2777c478bd9Sstevel@tonic-gate parent[heap[1].node] = ++lastnode;
2787c478bd9Sstevel@tonic-gate inc = heap[1].count;
2797c478bd9Sstevel@tonic-gate hmove(heap[n], heap[1]);
2807c478bd9Sstevel@tonic-gate n--;
2817c478bd9Sstevel@tonic-gate heapify(1);
2827c478bd9Sstevel@tonic-gate parent[heap[1].node] = lastnode;
2837c478bd9Sstevel@tonic-gate heap[1].node = lastnode;
2847c478bd9Sstevel@tonic-gate heap[1].count += inc;
2857c478bd9Sstevel@tonic-gate heapify(1);
2867c478bd9Sstevel@tonic-gate }
2877c478bd9Sstevel@tonic-gate parent[lastnode] = 0;
2887c478bd9Sstevel@tonic-gate
2897c478bd9Sstevel@tonic-gate /* assign lengths to encoding for each character */
2907c478bd9Sstevel@tonic-gate bitsout = maxlev = 0;
2917c478bd9Sstevel@tonic-gate for (i = 1; i <= 24; i++)
2927c478bd9Sstevel@tonic-gate levcount[i] = 0;
2937c478bd9Sstevel@tonic-gate for (i = 0; i <= END; i++) {
2947c478bd9Sstevel@tonic-gate c = 0;
2957c478bd9Sstevel@tonic-gate for (p = parent[i]; p != 0; p = parent[p])
2967c478bd9Sstevel@tonic-gate c++;
2977c478bd9Sstevel@tonic-gate levcount[c]++;
2987c478bd9Sstevel@tonic-gate length[i] = c;
2997c478bd9Sstevel@tonic-gate if (c > maxlev)
3007c478bd9Sstevel@tonic-gate maxlev = c;
3017c478bd9Sstevel@tonic-gate bitsout += c*(count[i]>>1);
3027c478bd9Sstevel@tonic-gate }
3037c478bd9Sstevel@tonic-gate if (maxlev > 24) {
3047c478bd9Sstevel@tonic-gate /* can't occur unless insize.lint.lng >= 2**24 */
305*da6c28aaSamw (void) fprintf(stderr, gettext(
306*da6c28aaSamw "pack: %s: Huffman tree has too many levels - "
307*da6c28aaSamw "file unchanged\n"), source);
3087c478bd9Sstevel@tonic-gate return (0);
3097c478bd9Sstevel@tonic-gate }
3107c478bd9Sstevel@tonic-gate
3117c478bd9Sstevel@tonic-gate /* don't bother if no compression results */
3127c478bd9Sstevel@tonic-gate outsize = ((bitsout+7)>>3)+6+maxlev+diffbytes;
3137c478bd9Sstevel@tonic-gate if ((insize.lint.lng+BUFSIZ-1)/BUFSIZ <=
314*da6c28aaSamw (outsize+BUFSIZ-1)/BUFSIZ && !force) {
315*da6c28aaSamw (void) printf(gettext(
316*da6c28aaSamw "pack: %s: no saving - file unchanged\n"), source);
3177c478bd9Sstevel@tonic-gate return (0);
3187c478bd9Sstevel@tonic-gate }
3197c478bd9Sstevel@tonic-gate
3207c478bd9Sstevel@tonic-gate /* compute bit patterns for each character */
3217c478bd9Sstevel@tonic-gate inc = 1L << 24;
3227c478bd9Sstevel@tonic-gate inc >>= maxlev;
3237c478bd9Sstevel@tonic-gate mask.lint.lng = 0;
3247c478bd9Sstevel@tonic-gate for (i = maxlev; i > 0; i--) {
3257c478bd9Sstevel@tonic-gate for (c = 0; c <= END; c++)
3267c478bd9Sstevel@tonic-gate if (length[c] == i) {
3277c478bd9Sstevel@tonic-gate bits[c] = mask.lint.lng;
3287c478bd9Sstevel@tonic-gate mask.lint.lng += inc;
3297c478bd9Sstevel@tonic-gate }
3307c478bd9Sstevel@tonic-gate mask.lint.lng &= ~inc;
3317c478bd9Sstevel@tonic-gate inc <<= 1;
3327c478bd9Sstevel@tonic-gate }
3337c478bd9Sstevel@tonic-gate
3347c478bd9Sstevel@tonic-gate return (output(source));
3357c478bd9Sstevel@tonic-gate }
3367c478bd9Sstevel@tonic-gate
337a77d64afScf int
main(int argc,char * argv[])3387c478bd9Sstevel@tonic-gate main(int argc, char *argv[])
3397c478bd9Sstevel@tonic-gate {
3407c478bd9Sstevel@tonic-gate extern int optind;
3417c478bd9Sstevel@tonic-gate register int i;
3427c478bd9Sstevel@tonic-gate register char *cp;
3437c478bd9Sstevel@tonic-gate int k, sep, errflg = 0;
3447c478bd9Sstevel@tonic-gate int c;
345fa9e4066Sahrens int error;
3467c478bd9Sstevel@tonic-gate int fcount = 0; /* count failures */
347fa9e4066Sahrens acl_t *aclp = NULL;
348*da6c28aaSamw char *progname;
349*da6c28aaSamw int sattr_exist = 0;
350*da6c28aaSamw int xattr_exist = 0;
3517c478bd9Sstevel@tonic-gate
3527c478bd9Sstevel@tonic-gate (void) setlocale(LC_ALL, "");
3537c478bd9Sstevel@tonic-gate #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
3547c478bd9Sstevel@tonic-gate #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
3557c478bd9Sstevel@tonic-gate #endif
3567c478bd9Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN);
3577c478bd9Sstevel@tonic-gate
358*da6c28aaSamw if (progname = strrchr(argv[0], '/'))
359*da6c28aaSamw ++progname;
360*da6c28aaSamw else
361*da6c28aaSamw progname = argv[0];
362*da6c28aaSamw
363*da6c28aaSamw while ((c = getopt(argc, argv, "f-/")) != EOF) {
3647c478bd9Sstevel@tonic-gate if (c == 'f')
3657c478bd9Sstevel@tonic-gate force++;
366*da6c28aaSamw else if (c == '/')
367*da6c28aaSamw saflg++;
3687c478bd9Sstevel@tonic-gate else
3697c478bd9Sstevel@tonic-gate ++errflg;
3707c478bd9Sstevel@tonic-gate }
3717c478bd9Sstevel@tonic-gate /*
3727c478bd9Sstevel@tonic-gate * Check for invalid option. Also check for missing
3737c478bd9Sstevel@tonic-gate * file operand, ie: "pack" or "pack -".
3747c478bd9Sstevel@tonic-gate */
3757c478bd9Sstevel@tonic-gate argc -= optind;
3767c478bd9Sstevel@tonic-gate argv = &argv[optind];
3777c478bd9Sstevel@tonic-gate if (errflg || argc < 1 ||
378*da6c28aaSamw (argc == 1 && (argv[0][0] == '-' || argv[0][0] == '/' &&
379*da6c28aaSamw argv[0][1] == '\0'))) {
380*da6c28aaSamw (void) fprintf(stderr, gettext(
381*da6c28aaSamw "usage: pack [-f] [-] [-/] file...\n"));
3827c478bd9Sstevel@tonic-gate if (argc < 1 ||
383*da6c28aaSamw (argc == 1 && (argv[0][0] == '-' || argv[0][0] == '/') &&
384*da6c28aaSamw argv[0][1] == '\0')) {
3857c478bd9Sstevel@tonic-gate /*
3867c478bd9Sstevel@tonic-gate * return 1 for usage error when no file was specified
3877c478bd9Sstevel@tonic-gate */
3887c478bd9Sstevel@tonic-gate return (1);
3897c478bd9Sstevel@tonic-gate }
3907c478bd9Sstevel@tonic-gate }
391*da6c28aaSamw
3927c478bd9Sstevel@tonic-gate /* loop through the file names */
3937c478bd9Sstevel@tonic-gate for (k = 0; k < argc; k++) {
3947c478bd9Sstevel@tonic-gate if (argv[k][0] == '-' && argv[k][1] == '\0') {
3957c478bd9Sstevel@tonic-gate vflag = 1 - vflag;
3967c478bd9Sstevel@tonic-gate continue;
3977c478bd9Sstevel@tonic-gate }
3987c478bd9Sstevel@tonic-gate fcount++; /* increase failure count - expect the worst */
3997c478bd9Sstevel@tonic-gate if (errflg) {
4007c478bd9Sstevel@tonic-gate /*
4017c478bd9Sstevel@tonic-gate * invalid option; just count the number of files not
4027c478bd9Sstevel@tonic-gate * packed
4037c478bd9Sstevel@tonic-gate */
4047c478bd9Sstevel@tonic-gate continue;
4057c478bd9Sstevel@tonic-gate }
4067c478bd9Sstevel@tonic-gate /* remove any .z suffix the user may have added */
4077c478bd9Sstevel@tonic-gate for (cp = argv[k]; *cp != '\0'; ++cp)
4087c478bd9Sstevel@tonic-gate ;
4097c478bd9Sstevel@tonic-gate if (cp[-1] == SUF1 && cp[-2] == SUF0) {
4107c478bd9Sstevel@tonic-gate *cp-- = '\0'; *cp-- = '\0'; *cp = '\0';
4117c478bd9Sstevel@tonic-gate }
4127c478bd9Sstevel@tonic-gate sep = -1; cp = filename;
4137c478bd9Sstevel@tonic-gate max_name = pathconf(argv[k], _PC_NAME_MAX);
4147c478bd9Sstevel@tonic-gate if (max_name == -1) {
4157c478bd9Sstevel@tonic-gate /* pathname invalid or no limit on length of filename */
4167c478bd9Sstevel@tonic-gate max_name = _POSIX_NAME_MAX;
4177c478bd9Sstevel@tonic-gate }
4187c478bd9Sstevel@tonic-gate /* copy argv[k] to filename and count chars in base name */
4197c478bd9Sstevel@tonic-gate for (i = 0; i < (MAXPATHLEN-3) && (*cp = argv[k][i]); i++)
4207c478bd9Sstevel@tonic-gate if (*cp++ == '/') sep = i;
4217c478bd9Sstevel@tonic-gate if ((infile = open(filename, 0)) < 0) {
422*da6c28aaSamw (void) fprintf(stderr, gettext(
423*da6c28aaSamw "pack: %s: cannot open: "), filename);
4247c478bd9Sstevel@tonic-gate perror("");
4257c478bd9Sstevel@tonic-gate continue;
4267c478bd9Sstevel@tonic-gate }
4277c478bd9Sstevel@tonic-gate if (i >= (MAXPATHLEN-3) || (i-sep) > (max_name - 1)) {
428*da6c28aaSamw (void) fprintf(stderr, gettext(
429*da6c28aaSamw "pack: %s: file name too long\n"), argv[k]);
4307c478bd9Sstevel@tonic-gate continue;
4317c478bd9Sstevel@tonic-gate }
432*da6c28aaSamw (void) fstat(infile, &status);
4334bc0a2efScasper if (S_ISDIR(status.st_mode)) {
434*da6c28aaSamw (void) fprintf(stderr, gettext(
435*da6c28aaSamw "pack: %s: cannot pack a directory\n"),
436*da6c28aaSamw argv[k]);
4377c478bd9Sstevel@tonic-gate goto closein;
4387c478bd9Sstevel@tonic-gate }
4397c478bd9Sstevel@tonic-gate if (status.st_size == 0) {
440*da6c28aaSamw (void) fprintf(stderr, gettext(
441*da6c28aaSamw "pack: %s: cannot pack a zero length file\n"),
442*da6c28aaSamw argv[k]);
4437c478bd9Sstevel@tonic-gate goto closein;
4447c478bd9Sstevel@tonic-gate }
4457c478bd9Sstevel@tonic-gate if (status.st_nlink != 1) {
446*da6c28aaSamw (void) fprintf(stderr, gettext(
447*da6c28aaSamw "pack: %s: has links\n"),
448*da6c28aaSamw argv[k]);
4497c478bd9Sstevel@tonic-gate goto closein;
4507c478bd9Sstevel@tonic-gate }
4517c478bd9Sstevel@tonic-gate *cp++ = SUF0; *cp++ = SUF1; *cp = '\0';
4527c478bd9Sstevel@tonic-gate if (stat(filename, &ostatus) != -1) {
453*da6c28aaSamw (void) fprintf(stderr, gettext(
454*da6c28aaSamw "pack: %s: already exists\n"), filename);
4557c478bd9Sstevel@tonic-gate goto closein;
4567c478bd9Sstevel@tonic-gate }
457*da6c28aaSamw if ((outfile = creat(filename, status.st_mode | O_RDONLY))
458*da6c28aaSamw < 0) {
459*da6c28aaSamw (void) fprintf(stderr, gettext(
460*da6c28aaSamw "pack: %s: cannot create: "), filename);
4617c478bd9Sstevel@tonic-gate perror("");
4627c478bd9Sstevel@tonic-gate goto closein;
4637c478bd9Sstevel@tonic-gate }
4647c478bd9Sstevel@tonic-gate
465fa9e4066Sahrens error = facl_get(infile, ACL_NO_TRIVIAL, &aclp);
466fa9e4066Sahrens
467fa9e4066Sahrens if (error != 0) {
468*da6c28aaSamw (void) fprintf(stderr, gettext(
469fa9e4066Sahrens "pack: %s: cannot retrieve ACL: %s\n"), argv[k],
470fa9e4066Sahrens acl_strerror(error));
471fa9e4066Sahrens }
472*da6c28aaSamw
473*da6c28aaSamw if (packfile(argv[k])) {
474*da6c28aaSamw if (pathconf(argv[k], _PC_XATTR_EXISTS) == 1)
475*da6c28aaSamw xattr_exist = 1;
476*da6c28aaSamw if (saflg && sysattr_support(argv[k],
477*da6c28aaSamw _PC_SATTR_EXISTS) == 1)
478*da6c28aaSamw sattr_exist = 1;
479*da6c28aaSamw if (sattr_exist || xattr_exist) {
480*da6c28aaSamw if (mv_xattrs(progname, argv[k], filename,
481*da6c28aaSamw sattr_exist, 0) != 0) {
482*da6c28aaSamw /* Move attributes back ... */
483*da6c28aaSamw xattr_exist = 0;
484*da6c28aaSamw sattr_exist = 0;
485*da6c28aaSamw if (pathconf(filename,
486*da6c28aaSamw _PC_XATTR_EXISTS) == 1)
487*da6c28aaSamw xattr_exist = 1;
488*da6c28aaSamw if (saflg && sysattr_support(filename,
489*da6c28aaSamw _PC_SATTR_EXISTS) == 1)
490*da6c28aaSamw sattr_exist = 1;
491*da6c28aaSamw if (xattr_exist || sattr_exist) {
492*da6c28aaSamw (void) mv_xattrs(progname,
493*da6c28aaSamw filename, argv[k],
494*da6c28aaSamw sattr_exist, 1);
495*da6c28aaSamw (void) unlink(filename);
496*da6c28aaSamw goto out;
497*da6c28aaSamw }
498*da6c28aaSamw } else {
499*da6c28aaSamw errno = 0;
500*da6c28aaSamw if (unlink(argv[k]) != 0) {
501*da6c28aaSamw (void) fprintf(stderr, gettext(
502*da6c28aaSamw "pack: %s :cannot unlink:"),
503*da6c28aaSamw argv[k]);
504*da6c28aaSamw if (errno == EPERM)
505*da6c28aaSamw perror("No permission");
506*da6c28aaSamw else
507*da6c28aaSamw perror("");
508*da6c28aaSamw }
509*da6c28aaSamw }
510*da6c28aaSamw } else {
511*da6c28aaSamw errno = 0;
512*da6c28aaSamw if (unlink(argv[k]) != 0) {
513*da6c28aaSamw (void) fprintf(stderr, gettext(
514*da6c28aaSamw "pack: %s :cannot unlink"),
515*da6c28aaSamw argv[k]);
516*da6c28aaSamw if (errno == EPERM)
517*da6c28aaSamw perror("No permission");
518*da6c28aaSamw else
519*da6c28aaSamw perror("");
520*da6c28aaSamw }
5217c478bd9Sstevel@tonic-gate }
522*da6c28aaSamw (void) printf(gettext(
523*da6c28aaSamw "pack: %s: %.1f%% Compression\n"),
524*da6c28aaSamw argv[k],
525*da6c28aaSamw ((double)(-outsize+(insize.lint.lng))/
526*da6c28aaSamw (double)insize.lint.lng)*100);
5277c478bd9Sstevel@tonic-gate /* output statistics */
5287c478bd9Sstevel@tonic-gate if (vflag) {
529*da6c28aaSamw (void) printf(gettext(
530*da6c28aaSamw "\tfrom %ld to %ld bytes\n"),
531*da6c28aaSamw insize.lint.lng, outsize);
532*da6c28aaSamw (void) printf(gettext(
533*da6c28aaSamw "\tHuffman tree has %d levels below "
534*da6c28aaSamw "root\n"), maxlev);
535*da6c28aaSamw (void) printf(gettext(
536*da6c28aaSamw "\t%d distinct bytes in input\n"),
537*da6c28aaSamw diffbytes);
538*da6c28aaSamw (void) printf(gettext(
539*da6c28aaSamw "\tdictionary overhead = %ld bytes\n"),
540*da6c28aaSamw dictsize);
541*da6c28aaSamw (void) printf(gettext(
5427c478bd9Sstevel@tonic-gate "\teffective entropy = %.2f bits/byte\n"),
543*da6c28aaSamw ((double)outsize / (double)insize.lint.lng)
544*da6c28aaSamw * 8);
545*da6c28aaSamw (void) printf(gettext(
5467c478bd9Sstevel@tonic-gate "\tasymptotic entropy = %.2f bits/byte\n"),
547*da6c28aaSamw ((double)(outsize-dictsize) /
548*da6c28aaSamw (double)insize.lint.lng) * 8);
5497c478bd9Sstevel@tonic-gate }
550*da6c28aaSamw
5517c478bd9Sstevel@tonic-gate u_times.actime = status.st_atime;
5527c478bd9Sstevel@tonic-gate u_times.modtime = status.st_mtime;
5537c478bd9Sstevel@tonic-gate if (utime(filename, &u_times) != 0) {
5547c478bd9Sstevel@tonic-gate errflg++;
555*da6c28aaSamw (void) fprintf(stderr,
556*da6c28aaSamw gettext(
557*da6c28aaSamw "pack: cannot change times on %s: "),
558*da6c28aaSamw filename);
5597c478bd9Sstevel@tonic-gate perror("");
5607c478bd9Sstevel@tonic-gate }
5617c478bd9Sstevel@tonic-gate if (chmod(filename, status.st_mode) != 0) {
5627c478bd9Sstevel@tonic-gate errflg++;
563*da6c28aaSamw (void) fprintf(stderr,
564*da6c28aaSamw gettext(
565*da6c28aaSamw "pack: can't change mode to %o on %s: "),
566*da6c28aaSamw status.st_mode, filename);
5677c478bd9Sstevel@tonic-gate perror("");
5687c478bd9Sstevel@tonic-gate }
569*da6c28aaSamw (void) chown(filename, status.st_uid, status.st_gid);
570fa9e4066Sahrens if (aclp && (facl_set(outfile, aclp) < 0)) {
571*da6c28aaSamw (void) fprintf(stderr, gettext(
572fa9e4066Sahrens "pack: %s: failed to set acl entries\n"),
573fa9e4066Sahrens filename);
574fa9e4066Sahrens perror("");
575fa9e4066Sahrens }
5767c478bd9Sstevel@tonic-gate if (!errflg)
5777c478bd9Sstevel@tonic-gate fcount--; /* success after all */
578fa9e4066Sahrens
579*da6c28aaSamw }
580*da6c28aaSamw out:
581f0a2d94fSmarks if (aclp) {
582fa9e4066Sahrens acl_free(aclp);
583f0a2d94fSmarks aclp = NULL;
584f0a2d94fSmarks }
585fa9e4066Sahrens
586*da6c28aaSamw closein: (void) close(outfile);
587*da6c28aaSamw (void) close(infile);
5887c478bd9Sstevel@tonic-gate }
5897c478bd9Sstevel@tonic-gate return (fcount);
5907c478bd9Sstevel@tonic-gate }
591